/*  定义flex布局简写类名 */
// 横向首部布局
.flex-start {
  display: -webkit-flex;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
// 横向居中布局
.flex {
  display: -webkit-flex;
  display: flex;
  justify-content: center;
  align-items: center;
}
// 横向尾部布局
.flex-end {
  display: -webkit-flex;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

// 纵向首部布局
.flex-col-start {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
}
// 纵向居中布局
.flex-col {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
// 纵向尾部布局
.flex-col-end {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
}

// 横向俩边靠边,中间平分,纵向居中
.flex-between {
  display: -webkit-flex;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

// 纵向俩边靠边,中间平分,横向向居中
.flex-col-between {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

// 横向俩边不靠边,中间间距平分,纵向居中
.flex-around {
  display: -webkit-flex;
  display: flex;
  justify-content: space-around;
  align-items: center;
}

// 纵向俩边不靠边,中间间距平分,横向居中
.flex-col-around {
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
}

.flex-wrap {
  flex-wrap: wrap;
}
.flex-1 {
  flex: 1;
}

.border-box {
  box-sizing: border-box;
}
